Aside from some buttons and LEDs, that's your lot. I hope it works. If you notice something I have got wrong, you would be doing me a favour telling me about it. I intend this design to be as inexpensive to manufacture as possible; Rev0 is specifically to prove it works, while Rev1 will fix any known issues in Rev0, and make the CPU a TQFP-100 instead of the PLCC-84.